Unrecognised option: --help
ponyc [OPTIONS] <package directory>

The package directory defaults to the current directory.

Options:
  --version, -v   Print the version of the compiler and exit.
  --debug, -d     Don't optimise the output.
  --define, -D    Define the specified build flag.
    =name
  --strip, -s     Strip debug info.
  --path, -p      Add an additional search path.
    =path         Used to find packages and libraries.
  --output, -o    Write output to this directory.
    =path         Defaults to the current directory.
  --library, -l   Generate a C-API compatible static library.
  --export, -e    Generate exported functions.
  --runtimebc     Compile with the LLVM bitcode file for the runtime.
  --pic           Compile using position independent code.
  --docs, -g      Generate code documentation.

Rarely needed options:
  --safe          Allow only the listed packages to use C FFI.
    =package      With no packages listed, only builtin is allowed.
  --ieee-math     Force strict IEEE 754 compliance.
  --cpu           Set the target CPU.
    =name         Default is the host CPU.
  --features      CPU features to enable or disable.
    =+this,-that  Use + to enable, - to disable.
  --triple        Set the target triple.
    =name         Defaults to the host triple.
  --stats         Print some compiler stats.
  --link-arch     Set the linking architecture.
    =name         Default is the host architecture.
  --linker        Set the linker command to use.
    =name         Default is the compiler used to compile ponyc.

Debugging options:
  --verbose, -V   Verbosity level.
    =0            Only print errors.
    =1            Print info on compiler stages.
    =2            More detailed compilation information.
    =3            External tool command lines.
    =4            Very low-level detail.
  --pass, -r      Restrict phases.
    =parse
    =syntax
    =sugar
    =scope
    =import
    =name
    =flatten
    =traits
    =docs
    =expr
    =verify
    =final
    =reach
    =paint
    =ir           Output LLVM IR.
    =bitcode      Output LLVM bitcode.
    =asm          Output assembly.
    =obj          Output an object file.
    =all          The default: generate an executable.
  --ast, -a       Output an abstract syntax tree for the whole program.
  --astpackage    Output an abstract syntax tree for the main package.
  --trace, -t     Enable parse trace.
  --width, -w     Width to target when printing the AST.
    =columns      Defaults to the terminal width.
  --immerr        Report errors immediately rather than deferring.
  --verify        Verify LLVM IR.
  --extfun        Set function default linkage to external.
  --files         Print source file names as each is processed.
  --bnf           Print out the Pony grammar as human readable BNF.
  --antlr         Print out the Pony grammar as an ANTLR file.

Runtime options for Pony programs (not for use with ponyc):
  --ponythreads   Use N scheduler threads. Defaults to the number of
                  cores (not hyperthreads) available.
  --ponycdmin     Defer cycle detection until 2^N actors have blocked.
                  Defaults to 2^4.
  --ponycdmax     Always cycle detect when 2^N actors have blocked.
                  Defaults to 2^18.
  --ponycdconf    Send cycle detection CNF messages in groups of 2^N.
                  Defaults to 2^6.
  --ponygcinitial Defer garbage collection until an actor is using at
                  least 2^N bytes. Defaults to 2^14.
  --ponygcfactor  After GC, an actor will next be GC'd at a heap memory
                  usage N times its current value. This is a floating
                  point value. Defaults to 2.0.
  --ponynoyield   Do not yield the CPU when no work is available.
  --ponynoblock   Do not send block messages to the cycle detector.
  --ponynopin     Do not pin scheduler threads or the ASIO thread, even
                  if --ponypinasio is set.
                  threads are pinned to CPUs.
  --ponypinasio   Pin the ASIO thread to a CPU the way scheduler
                  threads are pinned to CPUs.